Question

【题目】I often do homework after dinner, but my brother _______.
A.doesn't
B.does
C.don't
D.do

Answer 1

【答案】A
【解析】句意：我经常晚饭后做作业，但是我哥哥不做。根据“but”一词可知前后两句是转折关系，所以后句应是否定句。my brother是第三人称单数，所以后面用三单形式does，否定形式是doesn't。故选A。